Date: Tue, 12 Feb 2019 16:12:15 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 235699] Kernel panics when setting IP address if net.link.ether.inet.garp_rexmit_count=2 Message-ID: <bug-235699-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=235699 Bug ID: 235699 Summary: Kernel panics when setting IP address if net.link.ether.inet.garp_rexmit_count=2 Product: Base System Version: 12.0-STABLE Hardware: Any OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: pete@twisted.org.uk If this is set then the kernel will panic a second or so after setting a network address on an interface. This applies to 12.0-RELEASE onwards. It woks fine on 11. Example and trace is below root@serpentine-passive:~ # ifconfig igb0 inet 10.32.10.4/16 up Fatal trap 12: page fault while in kernel mode cpuid = 0; apic id = 00 fault virtual address = 0x28 fault code = supervisor read data, page not present instruction pointer = 0x20:0xffffffff80c987f1 stack pointer = 0x28:0xfffffe00004d5730 frame pointer = 0x28:0xfffffe00004d5750 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 12 (swi4: clock (0)) trap number = 12 panic: page fault cpuid = 0 time = 1549981620 KDB: stack backtrace: #0 0xffffffff80bdfdc7 at kdb_backtrace+0x67 #1 0xffffffff80b93fa3 at vpanic+0x1a3 #2 0xffffffff80b93df3 at panic+0x43 #3 0xffffffff8106a7bf at trap_fatal+0x35f #4 0xffffffff8106a819 at trap_pfault+0x49 #5 0xffffffff81069e3e at trap+0x29e #6 0xffffffff810450c5 at calltrap+0x8 #7 0xffffffff80c986f6 at ether_output+0x6b6 #8 0xffffffff80d03354 at arprequest+0x4c4 #9 0xffffffff80d0515c at garp_rexmit+0xbc #10 0xffffffff80bade19 at softclock_call_cc+0x129 #11 0xffffffff80bae2f9 at softclock+0x79 #12 0xffffffff80b57c57 at ithread_loop+0x1a7 #13 0xffffffff80b54da2 at fork_exit+0x82 #14 0xffffffff810460be at fork_trampoline+0xe Uptime: 2m6s -- You are receiving this mail because: You are the assignee for the bug.help
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